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黑龍江工程學(xué)院本科生畢業(yè)設(shè)計(jì) 目 錄 要摘…………………………..……………………………………………………Ⅰ ABSTRACT……..…………………………………………………………………Ⅱ 第 1 章緒論 .................................................................................................................................1 1.1 剪板機(jī)分類 ......................................................................................................1 1.2 剪板機(jī)工作原理 ..............................................................................................2 第 2 章選擇方案對(duì)比 .........................................................................................................4 2.1 液壓傳動(dòng)方案 ..................................................................................................4 2.2 機(jī)械傳動(dòng)方案 ..................................................................................................4 2.2.1 凸輪機(jī)構(gòu)方案 ...........................................................................................5 2..2.2 曲柄滑塊機(jī)構(gòu)方案. .................................................................................5 2.3 剪板機(jī)結(jié)構(gòu)設(shè)計(jì)描述 ......................................................................................5 2.4 本章小結(jié) ..........................................................................................................9 第 3 章總體傳動(dòng)方案 ..........................................................................................................10 3.1 電動(dòng)機(jī)的選擇 ................................................................................................10 3.1.1 電動(dòng)機(jī)類型結(jié)構(gòu)形式的選擇 .................................................................10 3.1.2 電動(dòng)機(jī)功率的選擇 ................................................................................10 3.1.3 計(jì)算傳動(dòng)裝置運(yùn)動(dòng)和動(dòng)力參數(shù) ...........................................................12 3.2 本章小結(jié) .........................................................................................................12 第 4 章帶傳動(dòng)的設(shè)計(jì)及計(jì)算 ..............................................................................14 4.1 確定計(jì)算功率 ................................................................................................14 4.1 選擇帶型 .........................................................................................................14 4.3 確定小帶輪的基準(zhǔn)直徑 .................................................................................14 4.3.1 初選小帶輪的基準(zhǔn)直徑 ........................................................................14 4.3.2 計(jì)算帶的速度 ........................................................................................14 4.3.3 計(jì)算從動(dòng)輪的基準(zhǔn)直徑 .......................................................................15 4.4 確定中心距 a 和帶輪的基準(zhǔn)長(zhǎng)度 .................................................................15 黑龍江工程學(xué)院本科畢業(yè)設(shè)計(jì) 4.5 驗(yàn)算主動(dòng)輪上的包角 .....................................................................................16 4.6 確定帶的根數(shù) .................................................................................................16 4.7 確定帶的預(yù)緊力 .............................................................................................16 4.8 計(jì)算帶傳動(dòng)作用在軸上的壓軸力 .................................................................17 4.9 帶輪結(jié)構(gòu)的設(shè)計(jì) .............................................................................................17 4.9.1 小帶輪的結(jié)構(gòu)設(shè)計(jì) .................................................................................17 4.9.2 大帶輪的結(jié)構(gòu)設(shè)計(jì) .................................................................................19 5.0 本章小結(jié) .........................................................................................................20 第 5章軸的設(shè)計(jì) .....................................................................................................21 5.1 主動(dòng)軸設(shè)計(jì) ....................................................................................................21 5.1.1 軸的材料 .................................................................................................21 5.1.2 軸頸的最小許用值 ..................................................................................21 5.1.3 確定軸上的零件的裝配方案 ..................................................................22 5.1.4 軸上零件定位 ..........................................................................................22 5.1.5 軸各段直徑和長(zhǎng)度的確定 ......................................................................22 5.1.6 繪制主軸上零件的裝配圖及軸的結(jié)構(gòu)圖 ..............................................22 5.1.7 軸的強(qiáng)度校核計(jì)算 ..................................................................................22 5.2 從動(dòng)軸的設(shè)計(jì) ..................................................................................................22 5.2.1 材料選擇 ..................................................................................................22 5.2.2 軸頸的最小許用值 ..................................................................................22 5.2.3 確定軸上零件的裝配方案 ......................................................................22 5.2.4 繪制從動(dòng)軸上零件的裝配圖的結(jié)構(gòu)圖 ..................................................22 5.2.5 軸的強(qiáng)度校核 ..........................................................................................22 5.3 本章小結(jié) .........................................................................................................25 第 6章齒輪設(shè)計(jì) .....................................................................................................26 6.1 選定齒輪類型、精度等級(jí)、材料及齒數(shù) .....................................................26 6.1.1 齒輪類型的選擇 ......................................................................................26 6.1.2 齒輪材料的選擇 ......................................................................................26 6.1.3 選取精度等級(jí) ..........................................................................................26 6.1.4 選擇齒數(shù) ..................................................................................................26 6.2 按齒面接觸強(qiáng)度設(shè)計(jì) ......................................................................................26 6.2.1 確定公式內(nèi)容計(jì)算數(shù)值 ..........................................................................26 黑龍江工程學(xué)院本科畢業(yè)設(shè)計(jì) 6.2.2 計(jì)算 ..........................................................................................................27 6.3 按齒根彎曲強(qiáng)度設(shè)計(jì) ......................................................................................28 6.3.1 確定公式內(nèi)容計(jì)算數(shù)值 ..........................................................................29 6.3.2 設(shè)計(jì)計(jì)算 ..................................................................................................29 6.4 幾何尺寸計(jì)算 .................................................................................................30 6.4.1 計(jì)算分度圓直徑 ......................................................................................30 6.4.2 計(jì)算中心距 ..............................................................................................30 6.4.3 計(jì)算齒輪寬度 ..........................................................................................30 6.5 驗(yàn)算 .................................................................................................................30 6.6 結(jié)構(gòu)設(shè)計(jì)及繪制齒輪零件圖 .........................................................................31 6.6.1 對(duì)小齒輪的結(jié)構(gòu)設(shè)計(jì) ..............................................................................31 6.6.2 對(duì)大齒輪的機(jī)構(gòu)設(shè)計(jì) ..............................................................................31 6.7 本章小結(jié) .........................................................................................................33 第 7章曲柄滑塊機(jī)構(gòu)設(shè)計(jì) ..................................................................................34 7.1 材料的選擇 ......................................................................................................34 7.2 確定曲柄滑塊機(jī)構(gòu)桿件長(zhǎng)度 .........................................................................34 7.3 結(jié)構(gòu)設(shè)計(jì) .........................................................................................................35 7.4 強(qiáng)度校核 .........................................................................................................35 7.5 電動(dòng)機(jī)校核 .....................................................................................................36 7.6 建立曲柄滑塊機(jī)構(gòu)的數(shù)學(xué)模型 .....................................................................36 7.6.1 建立位移方程 ..........................................................................................37 7.6.2 建立速度方程 ..........................................................................................37 7.6.3 建立加速度方程 ......................................................................................37 7.7 本章小結(jié) .........................................................................................................38 結(jié)論 ..........................................................................................................39 參考文獻(xiàn) ..................................................................................................40 致謝 ............................................................................................................................41